This ZEISS 3-12x56 Conquest V4 Riflescope is engineered for hunting and shooting at longer ranges and in low-light conditions The optical system is made from high-definition optical glass and treated with T* multi-coatings, which produce a total light transmission of 90% and generate bright and sharp images. To reduce the amount of maintenance required in the field, the exterior lenses are also treated with proprietary LotuTec hydrophobic coatings that let water droplets run off the lens' surfaces and can be wiped off without visible traces.